1310 or 1350?

[grimmjeeper]

Which do you want to break first, the u-joint (1310) or the ring gear (1350)?

If you're breaking either, you need to upgrade both. That way you don't break anything.

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[grimmjeeper]

How much lift are you installing and what is the extended length of the front shocks?

If you don't have a FAD, and you want 6* of caster or so up front, a 1350 joint will probably give you vibrations. The 1310 has a larger window of happy.

If your shocks aren't 28" or longer, don't replace your driveshaft, spend the money elsewhere.

I guarantee you're going to break the Rzeppa joint at those angles. You need to replace it with something.

 

[icebrrrg]

3.5” of lift. RK says 29.5” front and 30.5” rear max shock length, extended, with generic shocks.

https://rockkrawler.com/rock-krawle...nsion-system-for-jeep-wrangler-jl-gas-models/

No FAD on my front axle.

 

[icebrrrg]

Going to go with a Carolina Driveline driveshaft, not sure if they have the Rzeppa issues licked.

 

[JT1]

I guarantee you're going to break the Rzeppa joint at those angles. You need to replace it with something.

I have wheeled mine a ton on the rocks. I have a Clayton 3.5 and the 3" lift fox 2.0s. My front shocks are over 28 extended. The flange on my rzeppa is mushroomed everywhere, but it's still kicking after 30k miles.

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